On 6/3/22 11:33, Jack wrote:
> Rust does support it like that:
>
> ```rust
>      const limit:i32 = 30;
>      let n = 10;
>      let mut r = if n > limit { "big" } else { "small "};
>      println!("{} is {} than {}", n, r, limit);
> ```
>
> do you think would be nice that in D as well?

It is consistent with the rest of Rust because I think all blocks are expressions in Rust. For example:

  https://doc.rust-lang.org/reference/expressions/block-expr.html

Ali

On 6/3/2022 11:33 AM, Jack wrote:
> Rust does support it like that:
> 
> ```rust
>      const limit:i32 = 30;
>      let n = 10;
>      let mut r = if n > limit { "big" } else { "small "};
>      println!("{} is {} than {}", n, r, limit);
> ```
> 
> do you think would be nice that in D as well? I find it can increase code reability...

D has:

    auto r = (n > limit) ? "big" : "small";

which is more readable than Rust's :-)

On Saturday, 4 June 2022 at 09:56:52 UTC, Walter Bright wrote:
> D has:
>
>     auto r = (n > limit) ? "big" : "small";
>
> which is more readable than Rust's :-)

While I do agree that's more readable, I wonder if the OP was thinking more along the lines of this, which is what you can see in languages like F# where if statements are expressions:

```
auto number = 200;
auto myVar = if (type == "as-is") {
    return number;
} else {
    // Very complex algorithm
    number *= 2;
    number += 2;
    number /= 2;
    number = number > 300 ? 200 : 100;
    return number;
}
```

F# takes it a step further since pretty much everything is an expression, so you can even use pattern matching as an expression :D https://fsharpforfunandprofit.com/posts/match-expression/

I sometimes do occasionally run into a situation where I get the feeling it would be nice to embed a statement in the expression, but the feeling soon passes.

Having loops embedded in an expression is not very readable.

Here is a question:

How much work would it take to make it work for lets just say if, foreach and switch?

Because this reminds me of the old removal of an if statement for imports story.

On Saturday, 4 June 2022 at 10:13:15 UTC, rikki cattermole wrote:
> Here is a question:
>
> How much work would it take to make it work for lets just say if, foreach and switch?
>
> Because this reminds me of the old removal of an if statement for imports story.

Even if it's easy to add... I think "immediately invoked lambda" is good enough.